1. Left Edge
1x1 = 1. Raw fits.
4d x 4d (tiny digits)
6 visual steps / multi-digit window train
2. 2-Pair Window
2 pairs: 1x1 + 1x1 = 2. Raw fits.
3. 3-Pair Window
3 pairs: 1x0 + 1x1 + 2x1 = 3. Raw fits.
4. 4-Pair Center
4 pairs = 5. Raw fits.
5. 3-Pair Right Window
3 pairs: 1x2 + 2x0 + 1x1 = 3. Raw fits.
6. Read answer
Read 1 | 2 | 3 | 5 | 3 | 4 | 2 as 1235342.
Practice Level 26
A few quick rounds make the train automatic; each raw window keeps one digit.
Start Level